Florissant city, Missouri
Official LSAD Designation: Florissant city • Census GEOID: 2924778
• St. Louis County
Demographics & Population Profile
Population and demographics for Florissant city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 51,124 | — | 2025 | Census |
| Median Age | 37.6 yrs | ±1.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 21,229 | ±634 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).